Device for manifold copying



(No Model) L. H.- CLARK. DEVICE FOR MANIFOLD COPYING.

No. 429,336. Patented'June 3;. 1890.

qwitmowo 1 vwawtoz attozmm UNITED STATES PATENT OFFICE.

LOUIE HENRY CLARK, OF DENVER, COLORADO.

DEVICE FOR MANIFOLD COPYING.

SPECIFICATION forming part of Letters Patent No. 429,336, dated June 3,1890.

Application filed November 25, 1889- $erial No. 331,515. (No model.)

To all whom it may concern:

Be it known that I, LOUIE HENRY CLARK, of Denver, in the county ofArapahoe and State of Colorado, have invented certain new and usefulImprovements in DevicesforManifold Copying; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to an improvement in devices for manifold copying,the object being to facilitate the preparation of duplicate andtriplicate copies of writing by the use of a single carbon sheet; andwith this end in view my invention consists in a book having long andshort leaves alternately bound between the covers, the short leavespreferably being of transparent material, and the long leaves aredivided through the middle by perforations and are printed on oppositesides, so that when folded together the printed blanks are on the sameside, with the short tissue leaves between the folds. When folded inthis manner, a carbon sheet carbonized on both sides is placed betweenthe tissue sheet and the fold made by the outer end of the leaf, thusmaking a copy on the outer end of the leaf and the back of the tissuesheet, which latter may be read through the leaf.

The invention further consists in certain novel features of constructionand combinations of parts, as will be hereinafter described,

and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in perspective of myimproved, book. Fig. 2 is a sectional view. Fig. 3 is a modification inwhich the outer end of the leaf is folded beneath the stub, with carbonbetween.

A A represent the covers of the book between which the leaves are bound.The leaves are preferably of two distinct varieties, as shown, andalternately arranged. The long leaves are divided by the perforations 11 into two equal-sized leaves 2 3, which have their blanks printed onopposite sides, so that when they are folded together they are both thesame side up. The alternate leaves 6 6 are of thin or tissue paper andbound securely between the covers. These leaves are half the size of thelong or double leaves and The sheet 7 is carbonized on both sides, andto take a copy or two copies, as is usually intended, the carbon sheetis placed behind the tissue or small leaf, and the outer portion 3 ofthe long leaf in front of this tissue leaf is bent around back of v thecarbon sheet. The writing is then done in the usual manner by making themarks on the portion 2 of the folded long leaf. This is the originalcopy. Another one is made on the corresponding side of the portion 3 ofthe long leaf, and a third copy is made on the back of the tissue sheet.Now the object of the transparent leaf is made obvious, for it isessential that this copy be read through the paper, the im-- printbeingon its back; hence a thin or tissue paper is generally employed. Thetissue leaves may be made detachable at the stub, and the long leavesare provided with the perforations at the division-line only and not atthe stub. Although the double sheet may be removed entirely, the tissuesheet is intended to remain in.

The books may be used for any business for which such articles areemployed, and they are printed to suit the business; but they areparticularly useful for memoranda, salebooks, shipping-books, bill andreceipt books, delivery-books, ac.

It is evident that slight changes might be resorted to in the form andarrangement of the several parts described without departing from thespirit and scope of my invention, and hence I do not wish to limitmyself to the particular construction herein set forth; but,

Having fully described my invention,what I claim as new, and desire tosecure by Letters Patent, is-

1. In devices for manifold copying, the combination, with a leaf dividedinto two or more similar portions adapted to befolded back of eachother, of a transparent leaf and a carbon sheet carbonized 011 bothsides, adapted to be folded between the portions of the long sheet,substantially as set forth.

2. The combination, with a pair of covers, of long and short leavesbound between the covers, the long leaves made in two or more similarportions separated by perforations adapted to take the copy upon theirbacks.

and having blanks adapted to lie beneath each other when the portionsare folded together, said short sheets being transparent, and a carbonsheet carbonized on both sides and adapted to be folded with thetransparent leaves between the folds of the long leaves, substantiallyas set forth.

3. The combination, with a pair of covers, of long and short leavesbound between the covers, the long leaves made in two or more similarportions separated by perforations and having blanks adapted to liebeneath each other When the portions are folded together, said shortsheets being transparent and detachable at the stub, and a carbon sheetcarbonized on both sides and adapted to be folded with the transparentleaves between the folds of the longleaves,'snbstantially as set forth.

l. The combination, With a leaf adapted to have its outer end foldedback of the stub end, of a removable carbon sheet to be illsertedbetween these folds, whereby impressions made on the stub end areduplicated on the portion folded beneath this stub portion,substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

LOUIE HENRY CLARK.

Witnesses:

R. W. STEWART, J. N. BILLINes.

